title: Multi-residue method for the analysis of pesticides in Arabica coffee using liquid chromatography/tandem mass spectrometry.
abstract: Coffee is a major tropical agricultural commodity and represents a significant fraction of the economy of many countries. However, certain plant and animal species can damage coffee crops, affecting trade. A solution to this issue is the use of pesticides, some of which are harmful to human health and the environment. This work consisted of the development of a multi-residue method for the analysis of pesticides in coffee by using LC-MS/MS. The QuEChERS extraction procedure was used. The following analytical parameters were optimised: selectivity, analytical range, linearity, LOD, LOQ, precision (RSD%) and recovery of the method. The results showed that the method is selective, as they were linear in the range of 10.0-100.0 µg kg(-1). The sensitivity, recovery and precision were adequate for the multi-residue analysis of pesticides in coffee. The method was applied to the analyses of 15 Brazilian coffee samples.
authors.affiliation: Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
authors.forename: Cláudia M
authors.initials: CM
authors.lastname: Dias
authors.forename: Fabiano A
authors.initials: FA
authors.lastname: Oliveira
authors.forename: Fernando D
authors.initials: FD
authors.lastname: Madureira
authors.forename: Gilsara
authors.initials: G
authors.lastname: Silva
authors.forename: Wesley R
authors.initials: WR
authors.lastname: Souza
authors.forename: Zenilda L
authors.initials: ZL
authors.lastname: Cardeal
mesh_terms: D002853:Chromatography, Liquid / Q000379:methods*; D003069:Coffee / Q000737:chemistry*; D006801:Humans; D057230:Limit of Detection; D010573:Pesticide Residues / Q000032:analysis*; D015203:Reproducibility of Results; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D003069:Coffee; D010573:Pesticide Residues